- Preheat oven to 180°C.- Combine sugars, sifted flours and nuts in a large bowl.- Add combined butter, egg, egg yolk and extract; mix to form a soft dough. Stir in chocolate.- Place 2 level tablespoons of dough for each biscuit, about 6cm apart, on lightly greased oven trays. Top with silver sugar beads.- Bake in moderate oven about 16 minutes or until browned lightly. Cool on trays.